44 
BULLETIN 1260, U. S. DEPARTMENT OF AGRICULTURE. 
forage sorghums; and as Schrock, a hybrid sorghum, was included in 
this part of the experiment, no grain yields are available for it. 
Dawn kafir made the largest yield of grain, although Dwarf Yellow 
milo nearly equaled it. These two varieties are apparently the best 
grain sorghums for this region. 
Table 11. — Comparative yields of the different sorghum varieties grown at Big 
Spring, Tex., for the 7-year period from 1915 to 1921, inclusive. 
Varietv 
1915 1916 191< 
1918 
1919 1920 1921 
aver- 
age. 
Rela- 
tive; 
deck. P£ 
age of 
cheek. 
10.01 
6.48 
4.56 
4.11 
Field-cured forage per acre (tons): 
Sorgos i— 
Sumac 
Orange 
Honey 
Red Amber 
Black Amber 
Seeded Ribbon Cane 
White African 
Grain sorghums- 
Dawn kafir 
Sunrise kafir 3.55 
Blackhull kafir 
Redkafir 2.52 
Dwarf Yellow milo 5.18 
Yellow milo \ 4.26 
White milo 4. 05 
Feterita j 2. 19 
Dwarf hegari 
Freed sorghum i 2.34 
Darso sorghum 
Schrock sorghum 
ShaUu 
Manchu kaoliang J .98 
Blackhull kaoliang 
Threshed grain per acre (56-pound 
bushels) : 
Grain sorghums- 
Dawn kafir 
Sunrise kafir 
Blackhull kafir 
Redkafir : 22.9 
Dwarf Yellow milo 47.0 
Yellow milo 28.6 
White milo ; 25. 
Feterita.... 33.3 
Dwarf hegari 
Shallu— --. 
Manchu kaoliang 12.9 
Blackhull kaoliang 
3.25 
1.88 
6.53 
2.00 
1.65 
0.39 
.36 
.301 
.50; 
.41 
3.38 
1.67 
2.70 
2.11 
1.12 
1.14 
2.94 
2.29! 
1.87i 
4.46 
2.7l| 
2.59i 
2.95J 
2.30 
40.3 
26.4 
15.2 
28.2 
18.4 
10.8 
7.9 
22.8 
16.1 
22.9 
.311 
1.12 
• 74| 
.83 
.65 
.54 
1.151 
.49 
.32 
1.17| 
1.13 
.29 
W 
3.0 
.3 

.6 
2.8 
3.3 
5.3 
24. 
.7 
4.53 
4.78 
4.60 
3.41 
3.56 
5.31 
5.29 
3.49 
4.18 
3.56 
4.06 
2.38 
3.00 
2.52 
1.73 
1.89 
3.02 
3.49 
4.16 
2.84 
2.16 
2.34 
48.0 
38.1 
39.2 
43.7 
37.3 
39.5 
36.3 
20.7 
28.2 
25.5 
23.9 
33.0 
7.75 
4.67 
9.88; 
3.60 
3.49 
4.88 1 
8.55 
3.08 
2.57' 
3.85 
2.98 
3.63 
4.73 
2.58 
2.79 
3.80 
2.20 
3.00 
3.58 
4.85 
2.67 
1.79 
3.30 
2. 351 
2.49 
1.981 
1.87 
2.30 
3.14 
1.75 
2.10 
1.78 
1-56' 
2.07 
2.05 
1.81 
1.63 
1.50i 
1.741 
1.57. 
1.73 
1.45 
1.091 
1.33 
4.18 
2.93 
4.52 
2.29 
2.00 
4.16 
3.45 
2.17 
2.26 
2.02 
1.84 
2.13 
2.59 
1.96 
1.50 
2.14 
1.88 
1.82 
2.48 
2. 06 
1.73 
1.82 
41.5 
31.8 
44.6 
32.0 
39.6 
39.9 
26.1 
23.1 
34.7 
55.5 
18.8 
27.4 
20.9 
35.6 
18.9 
16.3 
29.8 
19.0 
19.4 
18.9 

8.2 
16.8 
20.2 
24.1 
22.9 
20.2 
18.0 
23.5 
21.9 
18.3 
17.1 
21.0 
19.1 
18.1 
26.9 
4.18 
4.18 
4.18 
4.18 
4.18 
5.19 
3.20 
2.17 
2.17 
1.85 
2.17 
2.17 
2.17 
2.17 
2.17 
1.85 
2.17 
1.85 
1.85 
1.85 
3.11 
2.77 
24.1 
24.1 
21.4 
24.1 
24.1 
24 1 
24.1 
24.1 
36.8 
21.4 
37.7 
36.8 
100 
70 
10s 
55 
48 
80 
108 
100 
104 
109 
85 
98 
119 
116 
87 
98 
134 
111 
56 
100 
95 
94 
98 
91 
76 
1 Grain yields were not obtained from any of the sorgos, nor from Freed, Darso, and Schrock sorghums, 
TUCUMCARI, N. MEX. 
Climatic conditions at Tucumcari, where the normal annual rainfall 
is only 17.4 inches, resemble those at Big Spring, Tex., not only in 
respect to the total, but also as regards the variation in seasonal rain- 
fall. A slightly larger proportion of the total rainfall comes during 
the growing season at Tucumcari; soil blowing is also a factor of 
more importance than at Big Spring. On the whole, therefore, the 
chances of getting a profitable crop are about equal at the two places 
and considerably less than at Dalnart, Tex., where the total rainfall 
is about the same. 
Tucumcari is nearer the mountains and has a higher altitude (4,194 
feet) than any of the other field stations in the sorghum belt. This 
altitude, however, when considered in connection with the latitude is 
not sufficient to limit sorghum production. 
